Order of the National Green Tribunal in the matter of Nav Yuva Sanghatan & Others Vs The Secretary, Narmada, Water Resources, Water Supply & Kalpsar Department & Others dated 11/07/2019 regarding damage to environment in the area of Tapi river at Surat in Gujarat caused by illegal construction activities, dumping of waste, dredging, digging, illegal discharge of effluents and absence of demarcation of blue line and red line in the river bed by the Irrigation Department.